So. I have F350 2011. I wondering why it sifted hard on 2nd and 3rd gear. Well. ST. George transmission looked at it. Drove it around a lot. Only got it to do a couple of times. So the hooked up a machine to read it. All looks in normal range pressures. So, cleared up the computer and the problem went away. Little to no cost to me. They worked with my warranty company. Thanks for your good work. Aaron.